1) The default slave address for CY8C20110 is 0.
2) To get the CapSense buttons status issue the command W 00 A0 0B.
3) By specifying W, we mean the command is write. By specifying R, the command is read. These commands are issued in an application called Bridge Control Panel. This application is installed along with the PSoC Programmer installation.
I suggest that you use PSoC Designer 5.0 to configure CY8C20110. You can find further information in CY3218-CAPEXP1 CapSense Express™ Kit (Up to 10 I/O for Buttons).
On the other hand I request you to consider our newest MBR3 devices instead of CY8C20110, and if you are in the design stage,
thanks for u r response sir